platform_thread_win.cc revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/platform_thread.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/debug/alias.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/debug/profiler.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/threading/thread_id_name_manager.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/thread_restrictions.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/tracked_objects.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/windows_version.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The information on how to set the thread name comes from 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// a MSDN article: http://msdn2.microsoft.com/en-us/library/xcb2z8hs.aspx 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const DWORD kVCThreadNameException = 0x406D1388; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef struct tagTHREADNAME_INFO { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD dwType; // Must be 0x1000. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LPCSTR szName; // Pointer to name (in user addr space). 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD dwThreadID; // Thread ID (-1=caller thread). 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD dwFlags; // Reserved for future use, must be zero. 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} THREADNAME_INFO; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This function has try handling, so it is separated out of its caller. 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SetNameInternal(PlatformThreadId thread_id, const char* name) { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) THREADNAME_INFO info; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info.dwType = 0x1000; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info.szName = name; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info.dwThreadID = thread_id; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) info.dwFlags = 0; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) __try { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RaiseException(kVCThreadNameException, 0, sizeof(info)/sizeof(DWORD), 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<DWORD_PTR*>(&info)); 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } __except(EXCEPTION_CONTINUE_EXECUTION) { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct ThreadParams { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PlatformThread::Delegate* delegate; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool joinable; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DWORD __stdcall ThreadFunc(void* params) { 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ThreadParams* thread_params = static_cast<ThreadParams*>(params); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PlatformThread::Delegate* delegate = thread_params->delegate; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!thread_params->joinable) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ThreadRestrictions::SetSingletonAllowed(false); 5690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 5790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) /* Retrieve a copy of the thread handle to use as the key in the 5890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * thread name mapping. */ 5990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PlatformThreadHandle::Handle platform_handle; 6090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DuplicateHandle( 6190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) GetCurrentProcess(), 6290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) GetCurrentThread(), 6390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) GetCurrentProcess(), 6490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &platform_handle, 6590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 0, 6690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) FALSE, 6790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DUPLICATE_SAME_ACCESS); 6890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 6990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ThreadIdNameManager::GetInstance()->RegisterThread( 7090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) platform_handle, 7190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PlatformThread::CurrentId()); 7290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete thread_params; 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate->ThreadMain(); 7590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 7690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ThreadIdNameManager::GetInstance()->RemoveName( 7790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) platform_handle, 7890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) PlatformThread::CurrentId()); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// CreateThreadInternal() matches PlatformThread::Create(), except that 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// |out_thread_handle| may be NULL, in which case a non-joinable thread is 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// created. 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool CreateThreadInternal(size_t stack_size, 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PlatformThread::Delegate* delegate, 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PlatformThreadHandle* out_thread_handle) { 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int flags = 0; 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (stack_size > 0 && base::win::GetVersion() >= base::win::VERSION_XP) { 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) flags = STACK_SIZE_PARAM_IS_A_RESERVATION; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stack_size = 0; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ThreadParams* params = new ThreadParams; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) params->delegate = delegate; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) params->joinable = out_thread_handle != NULL; 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Using CreateThread here vs _beginthreadex makes thread creation a bit 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // faster and doesn't require the loader lock to be available. Our code will 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // have to work running on CreateThread() threads anyway, since we run code 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // on the Windows thread pool, etc. For some background on the difference: 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // http://www.microsoft.com/msj/1099/win32/win321099.aspx 10490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void* thread_handle = CreateThread( 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NULL, stack_size, ThreadFunc, params, flags, NULL); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!thread_handle) { 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete params; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (out_thread_handle) 11290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) *out_thread_handle = PlatformThreadHandle(thread_handle); 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CloseHandle(thread_handle); 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PlatformThreadId PlatformThread::CurrentId() { 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GetCurrentThreadId(); 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 12690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)PlatformThreadHandle PlatformThread::CurrentHandle() { 12790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NOTIMPLEMENTED(); // See OpenThread() 12890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return PlatformThreadHandle(); 12990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)} 13090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 13190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// static 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PlatformThread::YieldCurrentThread() { 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::Sleep(0); 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PlatformThread::Sleep(TimeDelta duration) { 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::Sleep(duration.InMillisecondsRoundedUp()); 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PlatformThread::SetName(const char* name) { 1432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ThreadIdNameManager::GetInstance()->SetName(CurrentId(), name); 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // On Windows only, we don't need to tell the profiler about the "BrokerEvent" 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // thread, as it exists only in the chrome.exe image, and never spawns or runs 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // tasks (items which could be profiled). This test avoids the notification, 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // which would also (as a side effect) initialize the profiler in this unused 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // context, including setting up thread local storage, etc. The performance 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // impact is not terrible, but there is no reason to do initialize it. 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (0 != strcmp(name, "BrokerEvent")) 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tracked_objects::ThreadData::InitializeThreadContext(name); 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The debugger needs to be around to catch the name in the exception. If 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // there isn't a debugger, we are just needlessly throwing an exception. 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If this image file is instrumented, we raise the exception anyway 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to provide the profiler with human-readable thread names. 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!::IsDebuggerPresent() && !base::debug::IsBinaryInstrumented()) 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SetNameInternal(CurrentId(), name); 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const char* PlatformThread::GetName() { 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return ThreadIdNameManager::GetInstance()->GetName(CurrentId()); 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PlatformThread::Create(size_t stack_size, Delegate* delegate, 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PlatformThreadHandle* thread_handle) { 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(thread_handle); 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return CreateThreadInternal(stack_size, delegate, thread_handle); 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PlatformThread::CreateWithPriority(size_t stack_size, Delegate* delegate, 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PlatformThreadHandle* thread_handle, 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ThreadPriority priority) { 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool result = Create(stack_size, delegate, thread_handle); 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (result) 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SetThreadPriority(*thread_handle, priority); 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return result; 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool PlatformThread::CreateNonJoinable(size_t stack_size, Delegate* delegate) { 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return CreateThreadInternal(stack_size, delegate, NULL); 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PlatformThread::Join(PlatformThreadHandle thread_handle) { 19390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DCHECK(thread_handle.handle_); 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(willchan): Enable this check once I can get it to work for Windows 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // shutdown. 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Joining another thread may block the current thread for a long time, since 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the thread referred to by |thread_handle| may still be running long-lived / 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // blocking tasks. 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if 0 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::ThreadRestrictions::AssertIOAllowed(); 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Wait for the thread to exit. It should already have terminated but make 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // sure this assumption is valid. 20590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DWORD result = WaitForSingleObject(thread_handle.handle_, INFINITE); 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (result != WAIT_OBJECT_0) { 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Debug info for bug 127931. 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD error = GetLastError(); 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug::Alias(&error); 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug::Alias(&result); 21190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) debug::Alias(&thread_handle.handle_); 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CHECK(false); 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 21590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) CloseHandle(thread_handle.handle_); 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void PlatformThread::SetThreadPriority(PlatformThreadHandle handle, 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ThreadPriority priority) { 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (priority) { 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kThreadPriority_Normal: 22390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ::SetThreadPriority(handle.handle_, THREAD_PRIORITY_NORMAL); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case kThreadPriority_RealtimeAudio: 22690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ::SetThreadPriority(handle.handle_, THREAD_PRIORITY_TIME_CRITICAL); 22790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) break; 22890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) default: 22990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NOTREACHED() << "Unknown priority."; 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace base 235